abstract: Cultivation theory states that consuming television cultivates a social reality in the real world which aligns with the reality present in television. When the television show CSI was released, researchers studied a form of cultivation stemming from the show titled the "CSI Effect." One of the components of the CSI Effect is the tendency of those who watch CSI to be more likely to overestimate the presence of forensic evidence present in a trial and place more trust in such evidence. In recent years, several true crime documentaries that examined controversial cases have been released. In a similar vein of research conducted on CSI, the current study examines true crime documentaries and their possible impacts on viewers’ judgments and beliefs about the criminal justice system. In the current study, participants were provided with a mock case and asked about their perceptions of the case along with their viewership habits. While overall true crime documentary viewership did not influence judgments of evidence manipulation or perceptions of police, findings point to viewership of the targeted documentaries being associated with feelings of mistrust towards the criminal justice system overall, while the lesser-viewed documentaries correlated with judgments of strength and responsibility of the defendant in the case. One possible explanation is that individual characteristics may serve as the driving factor in how individuals choose what to watch when the popularity of the show is not as well-known. / Dissertation/Thesis / Masters Thesis Psychology 2018

It has been shown that popular crime television series can have an impact in the behavior and perception of viewers. Forensic evidence, or evidence that is gathered through scientific methods, is often central to the plot of these shows. Exposure to forensic evidence in these shows has impacted the legal system by changing perceptions and opinions towards evidence presented in courtrooms, a consequence termed the CSI effect. A subset of the CSI effect named the Police Chief's Effect refers to the ability of criminals to learn about forensic evidence from these shows. Although understudied, the Police Chief's effect has the potential to increase the difficulty of criminal investigations if criminals are better able to plan their actions and conceal evidence. The intent of this thesis is to explore a relationship between forensic techniques portrayed in television and the forensic knowledge an individual obtains from it. Previous studies have looked at the Police Chief's effect in the context of a non-violent crime, even though most of the television shows highlight crime of a violent nature. The present study evaluates the ability of participants to consider forensic evidence when planning a murder, taking into account their crime show viewing history. The results revealed that the overall number of crime shows, percentage of those episodes and involvement in the shows was not associated with forensic evidence. However, a moderate correlation was found between the number of crime shows watched and forensic evidence in female participants.

This dissertation examines the relationship exposure to forensic crime television has on a potential juror’s willingness to find a suspect guilty when presented with a case involving only circumstantial and eyewitness evidence. This study also looks at a potential juror’s expectation of forensic evidence being presented at trial based upon this exposure. To better understand these relationships, the study utilized social constructionism as the theoretical framework. To collect data, an original survey instrument that included either a violent or non-violent crime scenario was developed. Reponses from 1572 undergraduate students were analyzed to better understand what might influence their willingness to find a suspect guilty and their expectation of forensic evidence being presented at trial. The results indicate that viewership of forensic crime television does not significantly influence a potential juror’s decision to find a suspect guilty or not guilty. After controlling for viewership, it appears that the number of justice-based classes completed by the potential juror does influence their decision to find the suspect guilty. The analysis also shows that gender and the type of scenario (violent versus non-violent) may influence a juror’s willingness to find a suspect guilty. It does not appear that there is a correlation between a juror’s willingness to find a suspect guilty and their expectation of forensic evidence being presented at trial.

The media exaggerates the capabilities of crime laboratories while it publicizes the wrongdoings of individual forensic scientists. Such portrayals skew the perspectives of jurors and hinder expert witness testimony. Complicating the problem are separate, but related, phenomena that influence how forensic laboratories conduct casework. These phenomena are Cole and Dioso-Villa's conceptualization of the unrealistic expectations of forensic science created by fictional television, known as the CSI Effect; the Daubert ruling on the admissibility of expert testimony; and some federal policy changes as a result of a National Academy of Sciences (NAS) report that impacted requirements for the daily operation of crime laboratories. This study sought to better understand which among these phenomena had the greatest effect on policy development and implementation related to crime lab operations. Quantitative survey data were collected through an online survey from a nationwide sample (n = 124) of forensic practitioners belonging to the American Society of Crime Laboratory Directors. The data were analyzed using ANOVA to evaluate the influence of each factor (CSI Effect, Daubert ruling, and NAS report) on policy creation within crime laboratories. Results indicate that the CSI Effect has a statistically greater impact on policy creation than did either the Daubert ruling or the NAS report (p <.001). The implications for positive social change stemming from this study include recommendations to lawmakers and administrators to reevaluate performance objectives related to operations and increase awareness of the CSI Effect in order to promote scientifically sound results and increase the effectiveness of testimony at trial.

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Television shows, in particular CSI: Crime Scene Investigation, have captured the attention of the majority of Americans. As a consequence of these shows, the "CSI effect" has evolved. The CSI effect primarily occurs when people watch crime or law related shows resulting in them gaining an unrealistic expectation of what they think should occur in real trials. This is a concern for prospective jurors who take part in criminal trials. This thesis will reveal how the CSI effect has swept the nation. A large part of this study will be devoted to illustrating how the CSI effect has had an impact on jurors, criminals and the American court system. This thesis will shed light on how television has the power to alter a juror's mind, even if it is a decision that could completely change the defendant's life. This thesis will also examine how legal professionals have strategically begun to mention the CSI effect during their trials in court. Nowadays, it is an ordinary procedure for attorneys, during voir dire, to question prospective jurors about their television viewing habits, as it pertains to CSI. This study will also examine how the producers of CSI discount the effect in its entirety. The creators believe that their creation has been a helpful milestone in the evolution of our criminal justice system.

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